Lamb is waiting at the end of the line. This station we pass through now — it is a kind of ... carnival park, to teach children the beliefs of Ryan. The first law of Rapture was made to ban any contact with the surface. If a baby is raised here and wishes to leave, who is to stop him telling the city's secrets to the world? Und so. You would take your children here to scare them away from the world above. When they come out the other side, they no longer care to see the sun.

Well, look at you. A bonafide knight-in-armor...complete with iron horse! Name's Augustus Sinclair...Esquire. Looks to me like ol' Doc Lamb's got you in a bit of a bind. What say we do a little business? Now I happen to know the whereabouts of a security override key that'll let your fine locomotive pass right on through. You'll find it in the manager's office. Head along that way an' I'll make ya a little proposition.

Now, I hear you aren't just any ol' tin soldier. Fact is, you're the most wanted man in Rapture now, sport. That means you and I share a predicament by the name o' Sofia Lamb. Think of my help as a mutal venture...an investment o' sorts!

Here you are, son. Manager's office. Now, I was tryin' to break in and get the security override key when I was ah, waylaid by circumstance. I'm sendin' you my very own hackin' tool to help ya finish the job. Check the Pneumo tube there.

Here you are, son. Manager's office. See that gizmo on the table? You can fire that at a machine from afar and scramble the electrics 'til it falls in love with ya. Hackin', they call it. I was usin' that thing to break in and get the security override key. It's yours, if you can finish the job.

Poor bastards. Trouble with splicin' is, you keep it up — an' before long, you've got a face like a funhouse mirror, an' a need so deep you'd sell your momma for a fix. By then, goin' crazy is the sanest thing left to do.

Nothin's free in Rapture, sport — and a smart fella like you's got to wonder why I'd offer my assistance pro bono. The answer's simple — Doc Lamb. She seized all my holdings when she took over down here...and I aim to collect...with interest.

See that? Doc Lamb's makin' new Little Sisters somehow, pairin' 'em up with Big Daddies just like the bad old days. And that means ol' Sofia Lamb needs a whole lotta ADAM. A smart fella's gotta ask himself why.

Herr Delta...I must give you the truth, for already you begin to face my sins. When I left the city long ago, the Little Ones came with me. But one, the daughter of Sofia Lamb...I could not save. Now she is taking girls from the surface, und turning them into new Little Ones for her mother. The Splicers fear her — they say the "Big Sister is watching". Und now, it seems...she watches you. All of this...it is my fault. Before I am to die, I must stop her.

That's the very same she-beast who chased me off! And ya see that security booth she just iced over? ...Well, your traincar's stuck fast 'til ya get in there, sport. You'd have to splice up mighty hot to cut through that glacier...hmmm...well, as I recall, they sold Plasmids inside the park — head up to the main gate.

There's that Little Sis now! See if you want a Plasmid like hell's own fire, you're gonna need the ADAM she's got. Now, I expect she's headed to the El Dorado Lounge. Lots of bodies. Head that way — I'll get the gate open for ya.

Hmm, I think the Kraut's on to something, sport. Lil' Dimples there might not have enough ADAM in her belly for a new Plasmid just yet — but there are bodies all over Rapture, and she can sniff out which ones're ripe with the stuff. Find one.

The vent in the workshop is near - before you can send the Little One to me, you must Save her...make her human again. I will send you something to make this possible. Please...take it from the Pneumo.

Now, you could help Lady Frankenstein bring home one more o' her own little monsters. But see, you're thinkin', "hmm — I used to follow those Sisters around like a one-ton sack o' sucker"...an' maybe it's time to cash in on all that ADAM she's got.

Rapture's a high stakes town, son — an' the slug inside that little freak on your back is an ADAM jackpot. It's more'n whatcha need for one Plasmid...which means the rest is gravy. All you have to do...is take it. Tenenbaum's not exactly in a position to play the card o' judgment. She needs ya.

Don't listen to her, kid...Survival isn't always pretty, but it's the only game in town. Those little monsters are the big one's eyes an' ears. And they all belong to Lamb...You catchin' my drift here? In Rapture...nobody's innocent.

Uh, son, we got a bit of a...Big Sister is out there waitin' for you...an' she is not happy you took that Little Sis...if I were you, I'd get ready for a showdown. I'm uh, I'm lockin' the door. Nothin' personal. Best o' luck!

Well, sport — a man likes to see his investments pay off, an' you're provin' to be somethin' of a windfall. Tenenbaum's agreed to let me on board if I can guide ya across the city to Doctor Lamb. Won't be easy, mind, but I'm happy to oblige. Hold on, an' I'll come out to say hello.

Ask yourself, Subject Delta — what does Sinclair stand to gain in this little coup? Upon escaping, he would auction away Rapture's secrets without a second thought. If you believe I will allow you to conspire with such a man, then the damage to your mind has been extensive indeed...